--- product_id: 4865911 title: "MK-FO16-06-6PK Fuel Optimizer, 16-Ounce, 6-Pack" brand: "motorkote" price: "$176.22" currency: USD in_stock: true reviews_count: 8 category: "Motorkote" url: https://www.desertcart.us/products/4865911-mk-fo16-06-6pk-fuel-optimizer-16-ounce-6-pack store_origin: US region: United States of America --- # Boosts horsepower & torque Cleans fuel system & injectors Prevents gelling & waxing in cold MK-FO16-06-6PK Fuel Optimizer, 16-Ounce, 6-Pack **Brand:** motorkote **Price:** $176.22 **Availability:** ✅ In Stock ## Summary > ⛽ Unlock your engine’s hidden power — don’t let bad fuel hold you back! ## Quick Answers - **What is this?** MK-FO16-06-6PK Fuel Optimizer, 16-Ounce, 6-Pack by motorkote - **How much does it cost?** $176.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/4865911-mk-fo16-06-6pk-fuel-optimizer-16-ounce-6-pack) ## Best For - motorkote enthusiasts ## Why This Product - Trusted motorkote brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fuel System Detox:** Removes water, moisture, and harmful deposits to ensure a cleaner, hotter burn. - • **Power Up Every Drive:** Restores engine smoothness and eliminates hesitation for peak performance. - • **Universal Compatibility:** Safe for all gasoline and diesel engines, including catalytic converters and emissions systems. - • **Winter-Ready Protection:** Prevents fuel gelling and waxing, perfect for seasonal storage and cold climates. - • **Cost-Effective Performance:** Treats up to 160 gallons per 6-pack, delivering premium results without premium prices. ## Overview MotorKote MK-FO16-06-6PK Fuel Optimizer is a 16-ounce, 6-pack additive designed to clean fuel injectors, remove water and deposits, and improve fuel combustion in both gasoline and diesel engines. It enhances horsepower and torque, prevents fuel gelling in cold weather, and is safe for all emissions systems. Ideal for regular use every 3-4 fill-ups or for winterizing fuel tanks, it offers a cost-effective solution to maintain engine performance and fuel economy. ## Description Motorkote Fuel Optimizer was formulated to off-set the diminishing quality of fuel including phase separation. Once phase separation occurs water builds up in your tank. MotorKote Fuel Optimizer Removes water and moisture and other harmful deposits that rob your injectors of power and performance allowing for a cleaner burn. Helps your fuel burn cleaner and hotter for better fuel economy and performance. Use in the fuel tank in both gas and diesel engines. Review: Very good product. - After reading reviews plus as any other product advertised claiming bells and whiles, I was skeptical is it does what is says, since it was on sale, I bought 1 bottle for testing and see what it would do, since I just overhauled my Ford Crown Vic 4.6L V8 it had misfire issues, pinning under load, rough idling and power loss, the wearher heat also affected the performance of the engine do to heating and cooling problems, so after fixing what need it to be fixed I had Premium quater tank left, since this car is programed to run on 87 octane the Premium fuel only prevented pining under load most the time but it made the car run under powered, anyways I drove out the gas to almost empty with half a gallon fuel left It says to add 1oz per 10 gallons I decided to add 3 oz and filled up the tank full to 18.5 gal max, started the engine while leaving from the gas station I still felt not much power do to left over old fuel in lines with in 5 minutes of driving suddenly the engine smoothes out and no rough iding, I noticed increased power like no other, the engine started running like I remember buying it 20 years ago, under load no pining no misfires, good power pull up the fill no hesitation, of course it did had mechanical problems and got fixed but the engine still wasn't running perfect it had some hesitation, but now it's beautiful, I normally don't like to write reviews but this product deserves it, it sure lived up to its promises, for 13$ it treats up 160. gallons that is cheap, in my opinion is better than other more expensive products on the market, time will tell I will post follow up update if my milage got better after I empty this gas tank. give it a try its not expensive follow the instructions if you have a dirty engine put 1.5oz per 10 gal it shouldn't hurt just don't over do it. Review: This stuff really works! - I have this in all my gas powered engines. The jeep, both snow blowers, weed eater, leaf blower and chain saw. The weed eater, leaf blower and chain saw starts easier and all engines run smoother. I highly recommend this stuff. I also use their MotorKote hyper lubricant any place you would use regular oil. I coated all the door hinge pins in my home with it along with the dog clipper cutters, tools with moving parts like pliers, the moving parts on my jeep like door hinges, even in the 4 wheel drive transfer case and transmission. And both differentials. MotorKote says it is safe for power steering units so I added it there, too. This stuff works far superior than just oil. And if you watch a video on the MotorKote website (it is the last video on their video page) you will see amazing proof from an independent farmer who tested this product in a small engine. He drained the oil, treated the engine with 50% MotorKote and 50% regular oil. Let the engine run for five or ten minutes then drained the crankcase and filled it with just water. He ran the engine for an hour and there was no damage to the engine! ## Features - Directions: Add about 1 ounce per 10 gallon of gasoline or Diesel fuel at least every 3rd to 4th fill-up on most passenger vehicles; larger engines use same amount every fill-up - Motorkote fuel optimizer is safe for use in all catalytic converters, emissions systems and diesel particulate filter - Cleans fuel system and is a great storage solution for winterizing tanks and equipment - Fights gelling and waxing adds horsepower and torque - Cleans injectors to reduce: loss of power, hesitations, pinging/dieseling, loss of fuel economy ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00BVF1QLU | | Best Sellers Rank | #80,675 in Automotive ( See Top 100 in Automotive ) #71 in Diesel Additives | | Brand | Motorkote | | Customer Reviews | 4.6 4.6 out of 5 stars (318) | | Date First Available | March 15, 2013 | | Item Weight | 6.27 pounds | | Item model number | MK-FT16-06-6PK | | Manufacturer | Motorkote | | Manufacturer Part Number | MK-FT16-06-6PK | | Model | MK-FT16-06-6PK | | Product Dimensions | 11 x 8 x 5.5 inches | | Special Features | Use for storage tank or winterizing fuel system | | Voltage | 12 Volts | ## Images ![MK-FO16-06-6PK Fuel Optimizer, 16-Ounce, 6-Pack - Image 1](https://m.media-amazon.com/images/I/81lIn0dGfEL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good product. *by A***T on July 20, 2025* After reading reviews plus as any other product advertised claiming bells and whiles, I was skeptical is it does what is says, since it was on sale, I bought 1 bottle for testing and see what it would do, since I just overhauled my Ford Crown Vic 4.6L V8 it had misfire issues, pinning under load, rough idling and power loss, the wearher heat also affected the performance of the engine do to heating and cooling problems, so after fixing what need it to be fixed I had Premium quater tank left, since this car is programed to run on 87 octane the Premium fuel only prevented pining under load most the time but it made the car run under powered, anyways I drove out the gas to almost empty with half a gallon fuel left It says to add 1oz per 10 gallons I decided to add 3 oz and filled up the tank full to 18.5 gal max, started the engine while leaving from the gas station I still felt not much power do to left over old fuel in lines with in 5 minutes of driving suddenly the engine smoothes out and no rough iding, I noticed increased power like no other, the engine started running like I remember buying it 20 years ago, under load no pining no misfires, good power pull up the fill no hesitation, of course it did had mechanical problems and got fixed but the engine still wasn't running perfect it had some hesitation, but now it's beautiful, I normally don't like to write reviews but this product deserves it, it sure lived up to its promises, for 13$ it treats up 160. gallons that is cheap, in my opinion is better than other more expensive products on the market, time will tell I will post follow up update if my milage got better after I empty this gas tank. give it a try its not expensive follow the instructions if you have a dirty engine put 1.5oz per 10 gal it shouldn't hurt just don't over do it. ### ⭐⭐⭐⭐⭐ This stuff really works! *by S***R on May 18, 2023* I have this in all my gas powered engines. The jeep, both snow blowers, weed eater, leaf blower and chain saw. The weed eater, leaf blower and chain saw starts easier and all engines run smoother. I highly recommend this stuff. I also use their MotorKote hyper lubricant any place you would use regular oil. I coated all the door hinge pins in my home with it along with the dog clipper cutters, tools with moving parts like pliers, the moving parts on my jeep like door hinges, even in the 4 wheel drive transfer case and transmission. And both differentials. MotorKote says it is safe for power steering units so I added it there, too. This stuff works far superior than just oil. And if you watch a video on the MotorKote website (it is the last video on their video page) you will see amazing proof from an independent farmer who tested this product in a small engine. He drained the oil, treated the engine with 50% MotorKote and 50% regular oil. Let the engine run for five or ten minutes then drained the crankcase and filled it with just water. He ran the engine for an hour and there was no damage to the engine! ### ⭐⭐⭐⭐⭐ Motorkote Fuel Optimizer *by R***L on February 21, 2016* 1 ounce per 10 gallon's of fuel. DO NOT over pour. Because it's highly concentrated. My 22 year old F-150 run's like new using this and my 2000 Jeep Grand Cherokee 4.7 went from 16 mpg to 22 mpg on the open highway cruising at 70 mph. 18 mpg city. I mix one ounce of Upper Cylinder Lubricant with the Motorkote Fuel Optimizer every other fill up. I prep all my gas this way. So, my Snow blower, Tractors and Motorcycle all get this treatment every fill up. Amazon has the best price plus free shipping. Experience a quality product. It's worth every penny. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/4865911-mk-fo16-06-6pk-fuel-optimizer-16-ounce-6-pack](https://www.desertcart.us/products/4865911-mk-fo16-06-6pk-fuel-optimizer-16-ounce-6-pack) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-04-25*